So, you guys think this is 'harmful' to the car? Or you just don't see a point in using it?
It DEFINITELY helps cold start ups. On my 4.6 Thunderbird, every morning I cranked it up with a 10w-30 conventional oil in it, it would chatter for 3-4 seconds until the oil made it to the top. I then went with 4 quarts of 10w-30 and 1 quart of Lucas Oil Stabilizer and that never happened the whole time it was in there. Next change, I didn't use it, and still it never once chattered. So, I just use it every other oil change. I like Lucas products. I guess because I have never had a problem with them. I may only 'feel' that they help, but I know they have never caused a single problem.